xiicps_intr.c

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/* $Id: xiicps_intr.c,v 1.1.2.1 2011/01/20 03:45:04 sadanan Exp $ */
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/**
*
* @file xiicps_intr.c
*
* Contains functions of the XIicPs driver for interrupt-driven transfers.
* See xiicps.h for a detailed description of the device and driver.
*
* <pre> MODIFICATION HISTORY:
*
* Ver   Who     Date     Changes
* ----- ------  -------- -----------------------------------------------
* 1.00a drg/jz  01/30/10 First release
*
* </pre>
*
******************************************************************************/

/***************************** Include Files *********************************/

#include "xiicps.h"

/************************** Constant Definitions *****************************/

/**************************** Type Definitions *******************************/

/***************** Macros (Inline Functions) Definitions *********************/

/************************** Function Prototypes ******************************/

/************************* Variable Definitions *****************************/

/*****************************************************************************/
/**
*
* This function sets the status callback function, the status handler, which the
* driver calls when it encounters conditions that should be reported to the
* higher layer software. The handler executes in an interrupt context, so
* the amount of processing should be minimized
*
* Refer to the xiicps.h file for a list of the Callback events. The events are
* defined to start with XIICPS_EVENT_*.
*
* @param	InstancePtr is a pointer to the XIicPs instance.
* @param	CallBackRef is the upper layer callback reference passed back
*		when the callback function is invoked.
* @param	FuncPtr is the pointer to the callback function.
*
* @return	None.
*
* @note
*
* The handler is called within interrupt context, so it should finish its
* work quickly.
*
******************************************************************************/
void XIicPs_SetStatusHandler(XIicPs *InstancePtr, void *CallBackRef,
				  XIicPs_IntrHandler FuncPtr)
{
	Xil_AssertVoid(InstancePtr != NULL);
	Xil_AssertVoid(FuncPtr != NULL);
	Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);

	InstancePtr->StatusHandler = FuncPtr;
	InstancePtr->CallBackRef = CallBackRef;
}